Lake County, IN

488 public highway bridges

Lake County Bridge Snapshot

Lake County, Indiana contains 488 public highway bridges in the FHWA National Bridge Inventory. Roughly 28.9% are rated “Good,” 24% “Fair,” 5.5% “Poor,” and 5.5% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in IN are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

488
Total Bridges
28.9%
Good
5.5%
Poor
5.5%
Structurally Deficient

Condition Distribution

Good
28.9% (141)
Fair
24% (117)
Poor
5.5% (27)
SD
5.5% (27)

All Bridges (488)

US 41

Good

Over: E/L BIKE-HIKING TRAIL

00.93 S I-80, Lake, IN

Built 2013 Load: 37.6 t ADT: 39,016

SR 53

Good

Over: TURKEY CREEK

02.31 N US 30, Lake, IN

Built 1984 Load: 37.6 t ADT: 20,377

I-80 WB, WB RAMP

Good

Over: BURNS DITCH (DEEP RIVER)

00.45 E I-65, Lake, IN

Built 2010 Load: 37.6 t ADT: 57,107

BEVERLY LANE

Good

Over: LAKE GEORGE

00.04 N. of 2ND ST, Lake, IN

Built 2012 Load: 38.1 t ADT: 100

191ST AVENUE

Good

Over: SPRING RUN

00.10 E OF CHASE ST, Lake, IN

Built 2010 Load: 38.1 t ADT: 11

SR 912 EB RMP TO I

Good

Over: NS RR

00.25 W I-80, Lake, IN

Built 1997 Load: 38.6 t ADT: 21,281

SERENITY LANE

Good

Over: BOTHWELL DITCH

00.20 W of AUSTIN AVE, Lake, IN

Built 2018 Load: 38.6 t ADT: 100

BLAINE ST.

Good

Over: MAIN BEAVER DAM DITCH

00.11 S of 93rd AVE, Lake, IN

Built 2018 Load: 38.6 t ADT: 4,516

US 6

Good

Over: BRANCH OF DEEP RIVER

00.52 E SR 51 E JCT, Lake, IN

Built 2009 Load: 38.9 t ADT: 18,166

CALUMET AVENUE

Good

Over: EJ&E RAILROAD

00.30 N. of US 30, Lake, IN

Built 2004 Load: 38.9 t ADT: 22,835

SR 2

Good

Over: BAILEY DITCH

00.57 W US 41, Lake, IN

Built 1995 Load: 39.2 t ADT: 2,578

COLFAX STREET

Good

Over: SINGLETON DITCH

00.40 N. of 221st Ave, Lake, IN

Built 2007 Load: 39.9 t ADT: 301

I-90 EB

Good

Over: GRAND CALUMET RIVER

02.31 E US 12, Lake, IN

Built 2011 Load: 40.5 t ADT: 20,900

125TH AVENUE

Good

Over: WEST CREEK

00.90 E. of CALUMET, Lake, IN

Built 2021 Load: 40.7 t ADT: 257

MORSE STREET

Good

Over: MCCONNEL DITCH

00.00 Int of 176th Ave, Lake, IN

Built 2014 Load: 40.8 t ADT: 3,317

4TH AVE

Good

Over: NS RR & CSX RR

02.10 W SR 53, Lake, IN

Built 2005 Load: 40.9 t ADT: 10,108

101ST AVENUE

Good

Over: DEEP RIVER

00.70 W COLORADO, Lake, IN

Built 2015 Load: 41.2 t ADT: 3,896

68TH PLACE

Good

Over: BRANCH OF TURKEY CREEK

00.20 W. of SR 53, Lake, IN

Built 2012 Load: 42.1 t ADT: 5,943

US 41

Good

Over: GRAND CALUMET RIVER

00.58 S OLD SR 312, Lake, IN

Built 2002 Load: 42.8 t ADT: 18,401

SR 312

Good

Over: INDIANA HARBOR CANAL

00.50 E US 20, Lake, IN

Built 2010 Load: 42.8 t ADT: 12,308

US 20

Good

Over: GRAND CALUMET RIVER

01.03 E SR 312, Lake, IN

Built 2006 Load: 43.1 t ADT: 19,844

I-90 EB

Good

Over: GRAND CALUMET RIVER

00.72 E US 12, Lake, IN

Built 2011 Load: 43.1 t ADT: 20,365

EDMOND STREET

Good

Over: HART DITCH

00.10 E. of SHEFFIELD AVE, Lake, IN

Built 2012 Load: 43.2 t ADT: 256

RIDGE ROAD

Good

Over: CSX RAILROAD

00.50 W OF MICHIGAN STREE, Lake, IN

Built 2003 Load: 43.3 t ADT: 17,891

POPLAR LANE

Good

Over: HART DITCH

00.30 W. of WHITE OAK AVE, Lake, IN

Built 1977 Load: 43.6 t ADT: 550

COLFAX STREET

Good

Over: LITTLE CALUMET RIVER

00.90 N. of RIDGE RD, Lake, IN

Built 2000 Load: 43.9 t ADT: 3,155

I-65

Good

Over: CFE RR

06.54 N US 30, Lake, IN

Built 2009 Load: 44.7 t ADT: 37,109

I-65 NB

Good

Over: GTW RR

01.85 N US 30, Lake, IN

Built 1965 Load: 45.4 t ADT: 50,976

I-65 SB

Good

Over: GTW RR

01.85 N US 30, Lake, IN

Built 1965 Load: 45.4 t ADT: 50,976

61ST AVENUE

Good

Over: DEEP RIVER

00.40 W of WISCONSIN STRE, Lake, IN

Built 1961 Load: 45.5 t ADT: 10,534

I-80 EB, EB RAMP

Good

Over: BURNS DITCH (DEEP RIVER)

00.45 E I-65, Lake, IN

Built 2009 Load: 46.3 t ADT: 75,000

117TH AVENUE

Good

Over: WEST CREEK

00.30 E. of WHITE OAK Ave, Lake, IN

Built 2023 Load: 47.0 t ADT: 767

CLAY ST

Good

Over: KANKAKEE RIVER

00.20 S of 217th AVE, Lake, IN

Built 2015 Load: 47.1 t ADT: 948

I-80/ I-94 EB

Good

Over: CFE RR

00.57 W I-65, Lake, IN

Built 2009 Load: 48.0 t ADT: 85,710

3RD STREET

Good

Over: LAKE GEORGE & TRAIL

00.10 W. of MAIN STREET, Lake, IN

Built 2020 Load: 48.0 t ADT: 5,681

I-80/I-94 EB

Good

Over: LT CALUMET RIV, MONON TR

00.54 W US 41, Lake, IN

Built 2007 Load: 48.3 t ADT: 150,742

I-80/I-94 WB

Good

Over: LT CALUMET RIV, MONON TR

00.54 W US 41, Lake, IN

Built 2007 Load: 48.3 t ADT: 60,000

SR 53

Good

Over: LITTLE CALUMET RIVER

00.45 S I-80, Lake, IN

Built 1938 Load: 48.5 t ADT: 20,178

STATE LINE ROAD

Good

Over: WILLIAMS DITCH

00.50 S. of 241st Ave, Lake, IN

Built 2016 Load: 49.7 t ADT: 60

US 41 SB

Good

Over: BROWN DITCH

03.54 S SR 2, Lake, IN

Built 1954 Load: 49.9 t ADT: 7,198

176TH AVENUE

Good

Over: CEDAR CREEK

00.20 E. of MORSE ST, Lake, IN

Built 2010 Load: 50.2 t ADT: 219

FAIRBANKS STREET

Good

Over: TURKEY CREEK

00.60 N. of 73rd Ave, Lake, IN

Built 2016 Load: 50.4 t ADT: 7,860

COLFAX STREET

Good

Over: BROWN DITCH

00.50 N of 231st AVE, Lake, IN

Built 2014 Load: 50.7 t ADT: 1,211

I-80/ I-94 WB

Good

Over: CFE RR

00.57 W I-65, Lake, IN

Built 2010 Load: 51.5 t ADT: 11,863

185TH AVENUE

Good

Over: TRIBUTARY TO WEST CREEK

02.02 W. US-41, Lake, IN

Built 2019 Load: 52.6 t ADT: 422

I-65 NB

Good

Over: NS RR

04.83 N US 30, Lake, IN

Built 1965 Load: 53.8 t ADT: 56,252

I-65 SB

Good

Over: NS RR

04.83 N US 30, Lake, IN

Built 1965 Load: 53.8 t ADT: 54,358

CLAY ST

Good

Over: STONEY RUN DITCH

00.10 N of 153rd AVENUE, Lake, IN

Built 2019 Load: 54.3 t ADT: 345

CLAY STREET

Good

Over: JESSIE LITTLE DITCH

00.24 S STONE ROAD, Lake, IN

Built 2020 Load: 54.3 t ADT: 905

BROAD STREET

Good

Over: TURKEY CREEK

00.40 N of JOLIET, Lake, IN

Built 2015 Load: 54.8 t ADT: 7,657

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial